As much of the world shuts down because of the coronavirus pandemic, grocery store shelves have been emptied by people panic-buying for the worst-case scenario. But in a worst-case scenario where a household is required to quarantine, only two weeks of groceries are necessary to get through the 14-day period.

So what is two weeks' worth of groceries, exactly? It varies depending on the size and makeup of your household.

Polish Ph.D. candidate and dietitian Joanna Michalowska created a calculator that tells you just how much food you need to buy for your household to last through a 14-day quarantine. Input the number of adult women, adult men, girls under 10, and boys under 10 in your household. The calculator does not account for nonbinary people, and children over 10 are considered adults.

The calculator does not account for eating restrictions and only includes popular and basic grocery items. However, the included items and accompanying meal plan are designed to provide a balanced diet, and Michalowska encourages users to substitute items and add vegetables where possible.

Michalowska's calculator is one of many mind-bogglingly specific calculators designed by the researchers at Polish startup Omni Calculator.

Omni's calculators are designed to provide math-based solutions to everyday problems. Other calculators include a US stimulus payment calculator, an egg boiling calculator designed by a quantum physicist, and other calculators for financial planning, health monitoring, and other eclectic problems.